Great article, I just add one thing…you should tell to look for the permissions of the folders where the private keys are. I’ve got some issues when i tried to connect to HTTPs and was resolve by changing the permissions of home assistant user for that folders.
Maybe because of the version of hass.io - 0.82.1

Is the IMG file of Snakeoil ready for Raspberry Pi 3B installation? Is it as easy as volumio or Runeaudio for installation of the Snakeoil just by flashing it onto a micro SD card and inserting it to the Raspberry Pi so simple? Where is the location of all the OS installation files stored on the web? Can I have the relevant link here to search them out and have a trial?